It is probably the most well known platform for online language learning. Italki is a global language learning platform that connects students and teachers for 1-on-1 online language lessons. Students can choose their desired teacher/tutor based on their filters and preferences. If you do not have any speaking partner, you may search for some online, for example on Italki. From month 3, 4 or 6 or later you may start to pracite your speaking once per weak. It is not necessary speak more, continue reading and listening.
I am a strong believer in acquiring language through comprehensible input as described in section podcasts. Based on that, I do not recommend Italki to find a teacher who would "teach" you Slovak, but rather a tutor or speaking partner who would practice with you speaking, answering your questions and guiding you on your journey. You are paying for the service, you should be the one who decides what to do during the lesson. Do not be afraid to tell the tutor that you want him to ask you questions, do not be afraid to tell them that you do not want to do the activity that he/she choosed. They are there for you! On Italki, you can find many Slovak tutors, including myself.